By,
PRADEEP.T.P

Introduction

Copper , Aluminium and Lead-common journal bearing materials.
Bronze and Brass- Copper based alloys.
Zamacs - Zinc based alloys.
Duralumines - Aluminium based alloys.
White metals- Tin lead based alloys.
Present study- Tribological and mechanical properties of these journal bearings materials.

Tribology

Science and technology of interacting surfaces in relative motion and of related sub and practices.
Deals with ....etc

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PRESENTED BY:
ISHATPREET KAUR


MECHANICAL PROPERTIES OF CONCRETE INCORPORATING USED
FOUNDRY SAND
ABSTRACT
Metal foundries use large amounts of the metal casting process. Foundries successfully
recycle and reuse the sand many times in a foundry and the remaining sand that is termed
as foundry sand is removed from foundry. This study presents the information about the
civil engineering applications of foundry sand, which is technically sound and is
environmentally safe. Use of foundry sand in various ....etc

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Abstract
This paper focuses on the experimental investigation carried out on high strength concrete reinforced with hybrid fibres (combination
of hooked steel and a non-metallic fibre) up to a volume fraction of 0.5%. The mechanical properties, namely, compressive strength, split
tensile strength, flexural strength and flexural toughness were studied for concrete prepared using different hybrid fibre combinations –
steel–polypropylene, steel–polyester and steel–glass. The flexural properties were studied using four point ben ....etc

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CONDUCTIVITY σ ,FERMI LEVEL ,
MEAN FREE PATH &
RELAXATION TIME ť
FOR TYPICAL MONO-VALENT METALS
IS SHOWN IN TABLE

The conductivity σ may be obtained experimentally .
Further we can get ť by using eqn given below
σ = ( n*Qe2 *ť )/me ---------(1)
but ť obtained may not be accurate but we will get an idea of magnitude of ť . In a monovalent metal no of free e- /m3 is equals the no of atoms /m3 . From table we find that relaxation time T is of the order of 10-14 sec .Thus we can ....etc

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Abstract :

The case study project is significant since mild steel is used in structure, case hardening, gears, free cutting steels, shafting, forging etc. Mild steel plates were tested for mechanical properties like hardness, tensile strength, yield point etc. Later on the plates were joined by submerged arc welding and the mechanical properties were estimated again. Also weld ability, harden ability, tensile test etc. were conducted for the same result. ....etc

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IMPROVEMENT OF MECHANICAL PROPERTIES OF RIGID PAVEMENTS

INTRODUCTION
Transportation-basic infrastructure-development

Rigid and flexible

Basic neccesity-stable against loads

Rigid offers more strength “load

But change in temp. “warping up and warping down

To relieve stress-joint

Joint from the weaker plane and most of defects occur there

Increase the mechanical properties such as load carrying capacity and cracking resistance

Methods for improvement



Rigid Pav ....etc

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I need ppt and seminar report on mechanical properties of Sand replacement by copper slag plzzz help me sir... ....etc

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051/2016
Maximum ' 100 marks
Time : 1 hour and 15 minutes

1. The Wagon Tragedy, the tragic incident of Malabar Rebellion took place on 
(A)11 Nov 1921(B) 22 Nov 192122 Nov 1921
(C )10 Nov 1921(D)25 Nov 1921

2. The Hortus Malabaricus, the encyclopaedia of plants of Kerala was prepared by :
(A)The Portuguese (B) The Spanish
(C )The Dutch (D) The British

3.Name the Spanish Missionary, who initiated the first printing in Malayalam at Goa :
(A)Jovannea Gonsalvez (B) Francis Xavier
(C ) Melchior Carnoiro (D) Ale ....etc

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ABSTRACT
Miniaturization is the order of the day. Until recently a decade ago traditionally watch parts were considered to be the micro components one can think off. Recent changes in societyâ„¢s demand have forced us to manufacture variety of micro components used in different fields starting from entertainment electronics to be bio medical implants. Present day manufacturing processes used for miniaturization are the micro electronic fabrication techniques used for Micro Electro Mechanical Systems ....etc

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Introduction

High-temperature protective coatings used in gas turbine components must withstand extremely severe environmental conditions. There are two basic coating systems, which are currently being used in gas turbines to provide improved corrosion and oxidation resistance, and thereby extend the component life. These are called diffusion coatings and overlay coatings. The diffusion coatings provide a surface enrichment of aluminum, chromium, or silicon, and aluminizing behavior of nickel-based superallo ....etc

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